"That's all I've been looking forward to doing… ever since the fight was announced, I was like, 'I'm going to that fight,'" she said of the match between Mayweather and McGregor. "It's gonna be amazing and I can't wait to see who wins."

“I'll go with friends… yeah, that's what I think about when I think about my 25th birthday," she added. "I don't even have a party planned. I'm just thinking about the fight."

Lovato is a longtime boxing fan, and said her favorite workout is actually jiu-jitsu.

“I've been a white belt for over a year now and so it's time [to get a blue belt]," she shared. "But I can't, you can't ask for it… It goes white, blue, purple, brown, black. So I'll have a blue belt probably by the end of the year. But we'll see what happens.”